Forward Elastic Scattering of Light on Light, γ+γ\toγ+γ
| dc.creator | Block, M. M. | |
| dc.creator | Pancheri, G. | |
| dc.date | 2002-06-18 | |
| dc.date.accessioned | 2026-07-07T12:26:22Z | |
| dc.date.available | 2026-07-07T12:26:22Z | |
| dc.description | The forward elastic scattering of light on light, {\em i.e.,} the reaction $γ+γ\to γ+γ$ in the forward direction, is analyzed utilizing real analytic amplitudes. We calculate $ρ_{γγ}$, the ratio of the real to the imaginary portion of the forward scattering amplitude, by fitting the total $γγ$ cross section data in the high energy region $5 GeV \le \sqrt s \le 130 $ GeV, assuming a cross section that rises asymptotically as $\ln^2 s$. We then compare $ρ_{γγ}$ to $ρ_{nn}$, the ratio of the even portions of the $pp$ and $\pbar p$ forward scattering amplitudes, as well as to $ρ_{γp}$, the $ρ$ value for Compton scattering. Within errors, we find that the three $ρ$-values in the c.m.s. energy region $5 GeV \le \sqrt s \le 130$ GeV are the same, as predicted by a factorization theorem of Block and Kadailov. | |
| dc.description | 5 pages, Latex2e, 2 postscript figures, uses epsfig.sty | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0206166 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0206166 | |
| dc.identifier | Eur.Phys.J.C25:287-289,2002 | |
| dc.identifier | doi:10.1007/s10052-002-1019-6 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/214860 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Forward Elastic Scattering of Light on Light, γ+γ\toγ+γ | |
| dc.type | text |